From pirated Windows 7 to legitimate

[shg.prill]

Hi,

A friend of ours fixed my computer one time, but installed a pirated windows 7, which worked fine but over the long run my computer got really slow and I think it's because of the pirated windows. Now I got an activiation key gof a legitimate, but I don't have an installation CD. Anyone that has an idea how I can reinstall to the legitimate now?

 

[The Paladin]

I would not update the serial number because like you said you do not know whats running in the background.

1. get a fresh copy of a windows 7 cd or iso and make it bootable with rufus.
2, during install use your key to legitimately unlock it.

note: you need to get the same "copy" of windows model as the key is designed for... ie a Windows 7 Home will not unlock a Windows 7 pro

PS: you can get a legitimate copy of windows 7 iso from Microsoft web site
https://www.microsoft.com/en-us/software-download/windows7

 

[guanyu210379]

It is best to start anew with your legit copy.
Who knows what kind of cracks/hacks a.k.a. worms, viruses, etc. ran in the background of your old ilegal copy.

 

[shg.prill]

Thank you! Do you know if I can also download the ISO through an external harddrive? I don't have an USB with a lot of GB, but I have a 1TB external hard drive

 

[das_stig]

Use Microsoft media creation tool to download a copy of Win7 to USB pendrive and then reinstall using the new key.

https://www.microsoft.com/en-gb/software-download/windows7

 

[guanyu210379]

or burn the image into a dvd